Impact

Water doesn't recognize borders — and neither do the threats it faces. Our international teams work tirelessly to defend it.

This work is possible because of volunteers like you. Learn how you can join.

Impact

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We propose solutions so nature can recover.

• Early warning systems of water quality shifts

The water that flows through you connects you to 7 billion people — and billions more organisms. Protect it with us.

Impact

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my voice prevents contamination. Now I'm inspiring others.' — David T., Volunteer

We believe that nature can heal if we give it the chance. Our 20-year track record shows that grassroots action works.